Strong electron-phonon interaction in multiband superconductors

O.V. Dolgov; Alexandre Avraamovitch Golubov

doi:10.1103/PhysRevB.77.214526

Strong electron-phonon interaction in multiband superconductors

O.V. Dolgov, Alexandre Avraamovitch Golubov

Faculty of Science and Technology

Research output: Contribution to journal › Article › Academic › peer-review

14 Citations (Scopus)

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Abstract

We discuss the effects of anisotropy on superconducting critical temperature and order parameter in a strongly coupled regime. The multiband representation is used as a model for anisotropy. We show that strong-coupling effects in multiband superconductors lead to pair breaking due to interband coupling because soft phonon modes play the same role as static impurities. This effect makes the order parameters in different bands equal to each other and limits the upper bound on critical temperature.

Original language	Undefined
Pages (from-to)	214526-
Journal	Physical review B: Condensed matter and materials physics
Volume	77
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.77.214526
Publication status	Published - 2008

Keywords

IR-59247
METIS-252476

Access to Document

10.1103/PhysRevB.77.214526

strong

Cite this

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DO - 10.1103/PhysRevB.77.214526

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JO - Physical review B: Condensed matter and materials physics

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